How do volcanologists determine the height of eruptive plumes from Yellowstone’s past explosive eruptions? Ironically, you ...
During the 1992 eruption of Spurr, reports came in of between one to two millimeters of ashfall in Denali National Park and Manley Hot Springs. Nastan, the volcano observatory geologist ...
Its Crater Peak, the southern vent of Spurr volcano, has erupted four times in the last 100 years: in 1953, and three times in 1992. In two of those eruptions, about a quarter-inch of ashfall ...
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